Resistor mounting



Aug. 30, 1932.

C. J. HATHORN RESISTOR MOUNTING Filed May 9, 1931 2 Sheds-Sheet 1 INVENTOR alarm J. W21,

ATTORNEYS Aug. 30, 1932.

c. J. HATHORN RESISTOR MOUNTING Filed May 9, 19s1 2 Sheets-Sheet 2 INVENTOR Glarznce J. Hathorn EvawXW ATTORNEYS Patented so, 1932 UNITED STATES PATENT I OFFICE CLARENCE J". HATHOBN, 01 8'1. MARYS, PENNSYLVANIA, ASSIGNOR- TO STACKPOLE CARBON COMPANY, OF ST. MARYS, PENNSYLVANIA, A CORPORATION OF PENNSYL- vanra RESISTOR MOUNTING Application filed Kay 9,

This invention relates to mountings for radio resistor-elements and has for its object to provide a mountin in which the resistor element is supporte between two ter with one integral shouldered end portion projecting from the resistor and ada ted to serve as a fastening element for attac ment to an insulating support, and the other end portion projecting outwardly from the resistor for attachment to conductor wires of the radio circuit.

A further object is to providea combined F resistor support and terminal member which can be quickly and easily attached to the resistor element, which is provided with means by which it may be quickly and easily attached to the insulating support and to conductor wires, and which can be manufactured cheaply.

With the above and other objects in view,

- the invention may be said to comprise a de vice as illustrated in the accompanying drawings hereinafter described and articularly' set forth in the appended clalms, together with such variations and modifications thereof as will be apparent to one skilled,

in the art to which this invention appertains.

Reference should be had to the accompanying drawings forming a part of this specification, in which:

Fig. 1 is a perspective view showing a num ber of resistor units mounted on an insulating support;

Fig. 2 is a side elevation of one of the resistor elements and the terminals upon which it is supported; the resistor elements, terminal members and insulating support being shown in section at one end;

Fig. 3 is a section taken on the line indicated at 3-8 in Fig. 2;

Fig. 4 is a fragmentary side elevation showslightly modified construction;

in a

Tig. 5 is a section taken on the line indi-" portion 10 which 1881. Serial No. 536,228.

Fig. 7 is a section taken on the line indicated at 7-7 in Fig. 6;

Fig. 8 is a sectional view showing a terminal member having a tubular rivet permanently secured thereto to facilitate attachment to a supporting panel;

Fig. 9 is a lan view showing a further modification of the invention;

Fig. 10 is a side elevation of the resistor unit shown in Fig. 9, the resistor element and its mounting member at one end being shown in section;

Fig. 11 is an end elevation of the resistor unit viewed-as indicated by line 1111 in be formed by attaching two strips 4 and 5 of sheet copper face to face by soldering or welding, as shown in Figs. 2 and 3. The two attached strips 4 and 5 have longitudinal slits intermediate the ends thereof providing a central longitudinal strap 7 separated by the slits from side straps 8, and the straps 7 and 8 are spread apart and bowed to substantially semi-cylindrical form to provide a cylindncal band intermediate the ends of the mounting member to receive an end of one of the resistor elements 1.

The insulating plate or anel 3 is provided with apertures 9 and eac of the mounting members is provided at its inner end with a portion 10 of reduced width adapted to be inserted through an opening 9, and with shoulders 11 at the inner end of the reduced engage with a face of the plate 3 on opposite si es of the o ening. The strips 4 and 5 are not attached together at the outer end of the reduced portion 10, and

10; 1g. 12 1s a section taken on the hne 1nd1- opening therein.

the unattached ends provide tongues 12 which are adapted to be bent in o poslte directions into engagement with the ace of the plate 3 opposite that upon which the resistor elements are mounted, the inner end of the mounting members thus providing integral rivets for attachment of the mounting members to the insulating support.

The outer end of each mounting member projects outwardly from the resistor element and may be provided with an aperture 13 to receive a conductor wire which may be soldered in the opening, thus providing a conveniently disposed terminal for attachment of a conductor wire.

The outwardly projecting terminal portion of the mounting member maybe straight as shown in Figs. 1, 2 and 3, or may be bent laterally to provide a flange 14 in which the wire receiving opening is formed, as shown in Fig. 5.

The end of the resistor element is commonly provided with a coating of copper to provide a good electrical connection with the terminal member, and the terminal member may be provided with a metal cap 15, such as shown in Fig. 4, to receive an end of the resistor element.

The mounting member may be made from a single strip of sheet metal of suitable thickness as illustrated in Figs. 6 and ,7, in which the sheet metal strip 16 has lon 'tudinal slits intermediate the ends thereo providing a central strap 17 and side straps 18 which are spread apart and bowed to semi-cylindrical form to provide a cylindrical band to receive the resistor element. The inner end of the strip 16 has a portion 19 of reduced width and shoulders 20 at the inner end of the reduced portion 19 adapted to engage the face of the panel at opposite sides of the The reduced portion 19 is slit centrally at the outer end thereof to provide tongues 21 which may be bent laterally into engagement with the bottom of the insulating plate.

As shown in Fig. 8, the mounting member has a projecting portion 22 at its lower end to which is permanently attached, preferably by soldering, a tubular rivet 23 which may be inserted through the opening of the supporting plate and headed over against the bottom of the plate.

In themodification shown in Figs. 9 to 12, inclusive, a mounting member 24 is em loyed which consists of a plece of sheet meta preferably copper, which is bent to U-shape to provide a base flange 25 and an outer externally rojectingattachment flange 26. The base ange 25 has a tubular rivet 27 permanently secured thereto which is adapted to extend through an aperture in the panel 3 and to be headed over against the under side of the panel to rigidly secure the mounting member to the panel. The flange 26 is prorename vided with an aperture 28 to receive a conductor wire. The resistor element 1 is provided at each end with a metal cap 29 which fits tightly thereon and each of these caps has parallel slits extending across the end thereof and the metal between these slits is pressed outwardly to provide retaining straps 30 which are spaced from the body of the cap suficiently to provide an aperture at the end of each cap adapted to receive a mounting member 24:. In assembling a resistor unit the caps 29 are plaoed'on the ends of a resistor element 1 and the mounting members 24 are inserted within the retaining straps 30. The unit is then placed on the panel 3 with the tubular rivets 27 extending through apertures in the panel and the ends of the rivets 27 are headed over the margins of the panel openings to firmly clamp the mounting members to the panel. T he conductor wires may then be conveniently soldered totheflanges 26 of the mounting members.

It is apparent that the present invention.

provides a very simple and economical mounting for small resistor elements enabling these resistor elements to be quickly and easily attached to a supporting panel, and that no soldering of connections is required in mounting the resistor units on the insulating panel. Since the mounting members are made of relatively soft metal, such as sheet copper, these members may be quickly and easily joined to the supporting panel and are firmly held by the integral fastening means in position to receive the conductor wires.

Furthermore, it is to be understood that the particular form of product shown and described, and the particular procedure set forth, are presented for purposes of explanation and illustration and that various modifications of said product and procedure can be made without departing from my invention as defined in the appended claims.

What I claim isi 1. Means for mounting a resistor element on an insulating support comprising a combined mounting member and terminal composed of sheet metal and having a sup orting portion intermediate its ends adapte to receive a resistor element, said member having one end portion in the form of'a rivet for attachment to the insulating support and its opposite end in the form of a terminal to w ich conductor wires may be attached.

2. The combination with a resistor element n the form of a rod and an insulating support in the form of a plate having an aperture therein, of a combined mounting member and termmal composed of sheet metal and having a hand portion intermediate its ends adapted to encircle. an end of the resistor rod, said member having onev end portion of reduced width adapted to be inserted in the opening of the supporting plate and provided with shoulders at the inner end of the reduced portion engageable with the face of the supporting plate, said end portion having tongues bendable into engagement with the opposite face of the supporting plate, the opposite end of said member being in the form of a terminal to which conductor wires may be attached.

3. The combination with a resistor element in the form of a rod and an insulating support, of a combined mounting member and terminal in the form of a strip of sheet metal which has portions intermediate its ends separated by longitudinal sIits and spread apart to provide a band to encircle the resistor rod, said strip having aninner end portion of reduced width adapted to be inserted in 1 an opening in the insulating support, said end portion having shoulders at the inner end of the reduced portion for engagement with one face of said support and tongues adapted to be bent into engagement with the I opposite face-of the support, the opposite end of said strip providing means for attachment of conductor wires.

4. The combination with a resistor element in the form of a rod and an insulating support in the form of a plate having an aperture therein, of a combined mounting memher and terminal comprising a U-shape piece of sheet metal having a base flange adapted to rest on the panel which has a rivet integrally joined thereto and adapted to extend through the panel aperture, said mounting member having a laterally projecting attachment flange at its outer end, and a cap on the end of the resistor element adapted to be received between the flanges of the mounting member, said cap having a strap at the end thereof embracing the mounting member intermediate its flanges.

p In testimony whereof I afiix my signature;

CLARENCE J. HATHORN. 

